1. Product Positioning and Core Functions
• Applications:
This travel motor is specifically designed for medium-sized hydraulic excavators, compatible with Hitachi ZAX160 series and John Deere 160 models. It drives the undercarriage tracks or wheeled propulsion systems, enabling equipment movement, steering, and climbing.
• Key Specifications:
• Size Designation:16×16
• May refer to bolt-hole spacing on the motor mounting flange (e.g., 16mm pitch × 16mm pitch) or hydraulic port specifications (e.g., 16mm bore × 16mm bore).
• Requires model-specific confirmation but typically indicates a compact design for space-constrained chassis.
• Pressure & Flow:
• Operating pressure range: Approx. 250–350 bar (compatible with medium excavator hydraulic systems).
• Flow requirement: Matches pump output, typically 100–200 L/min (depending on engine power).
• Speed & Torque:
• Output speed: 0–100 rpm (adjustable via variable pump control).
• Output torque: Up to several thousand N·m (meets heavy-duty digging and climbing demands).
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2. Technical Features and Advantages
• Structure and Design:
• Axial Piston Motor: Commonly used in construction machinery for high efficiency and pressure resistance.
• Integrated Brake Valve: Some models include a parking brake for enhanced safety.
• Modular Design: Facilitates maintenance with replaceable components (e.g., bearings, seals).
• Performance Highlights:
• High Starting Torque: Ensures smooth operation in muddy or sloped terrain.
• Low-Speed Stability: Precise micro-movement control for fine grading tasks.
• Durability: Built with high-strength alloys to withstand harsh conditions (e.g., gravel, high temperatures).
• Compatibility:
• Adapts to Hitachi ZAX160 and John Deere 160 hydraulic systems. Port standards (e.g., SAE, ISO) may align, but electrical control signals (e.g., proportional valve drive) require compatibility verification.
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3. Common Failures and Maintenance
• Typical Issues:
• Leakage: Hydraulic oil seeps from shaft seals or housing joints; requires seal replacement.
• Abnormal Noise: Caused by worn bearings or gear misalignment; disassembly inspection needed.
• Power Loss: Due to piston wear or internal leakage, reducing torque output.
• Maintenance Recommendations:
• Regular Oil Changes: Use anti-wear hydraulic oil meeting ISO VG46 or higher standards.
• Filter Cleaning: Prevent contaminants from entering the motor to extend service life.
• Temperature Monitoring: Avoid prolonged operation above 80°C to prevent seal degradation.